运行写的不太完善的爬虫程序, 未限制任务队列大小, 再加上本子配置不高, 爬取网站到第3层大半时, 内存不足了...

进程运行太猛, 导致系统 out of memory, 那么此进程被系统的oom killer杀死.

此时终端显示 "Killed" 或 "已杀死".

查看相关信息的命令:

dmesg | egrep -i -B100 'killed process'

或:
egrep -i 'killed process' /var/log/messages
egrep -i -r 'killed process' /var/log

或:
journalctl -xb | egrep -i 'killed process'

结果类似这样:

4月 07 10:48:58 arch kernel: Out of memory: Kill process 1245 (python) score 685 or sacrifice child
4月 07 10:48:58 arch kernel: Killed process 1245 (python) total-vm:3519016kB, anon-rss:2453976kB, file-rss:0kB

参考:

http://stackoverflow.com/questions/726690/who-killed-my-process-and-why

http://stackoverflow.com/questions/624857/finding-which-process-was-killed-by-linux-oom-killer

http://unix.stackexchange.com/questions/10077/where-can-i-see-a-list-of-kernel-killed-processes